<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>3D Carousel Example</title>
    <style>
      /*
vars
*/
      :root {
        --carousel-transition-duration: 250ms;
        --carousel-transition-ease: ease-out;
        --carousel-bg-color-rgb: 0, 0, 0;
        --carousel-shadow-color-rgb: 128, 128, 128;
        --carousel-item-width: 11.5rem;
        --carousel-item-height: 17.5rem;
        --carousel-item-hover-effect: 1.075;
        --carousel-item-reflection-blur: 0.25rem;
        --carousel-item-empty-color-rgb: 255, 255, 255;
        --carousel-item-glow-color-rgb: 255, 255, 255;
        --carousel-item-glow-size: 5rem;
        --carousel-diameter: 50rem;
        --carousel-3d-perspective: 1000px;
        --carousel-3d-perspective-origin: 50% 20%;
        --carousel-control-button-width: 1.25rem;
        --carousel-control-button-height: 4rem;
        --carousel-control-color-rgb: 255, 255, 255;
        --carousel-animation-duration: 25s;
        --carousel-animation-play-state: running;
        --carousel-direction-animation-play-state: paused;
      }

      /*
global
*/
      *,
      *::before,
      *::after {
        margin: 0;
        padding: 0;
        border: 0;
        box-sizing: border-box;
      }

      *:focus {
        outline: none;
      }

      a {
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
        -webkit-tap-highlight-color: transparent;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
      }

      body {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 100vh;
        background-color: rgb(var(--carousel-bg-color-rgb));
        overflow: hidden;
      }

      /*
carousel
*/
      .carousel {
        --_diameter: var(--carousel-diameter);
        --_radius: calc(var(--_diameter) / 2);
        --_item-width: var(--carousel-item-width);
        --_item-height: var(--carousel-item-height);
        perspective: var(--carousel-3d-perspective);
        perspective-origin: var(--carousel-3d-perspective-origin);
        width: var(--_diameter);
        height: var(--_diameter);
      }

      @media only screen and (max-width: 48rem) {
        .carousel {
          --_diameter: calc(var(--carousel-diameter) * 0.75);
          --_item-width: calc(var(--carousel-item-width) * 0.75);
          --_item-height: calc(var(--carousel-item-height) * 0.75);
        }
      }

      @media only screen and (max-width: 32rem) {
        .carousel {
          --_diameter: calc(var(--carousel-diameter) * 0.6);
          --_item-width: calc(var(--carousel-item-width) * 0.6);
          --_item-height: calc(var(--carousel-item-height) * 0.6);
        }
      }

      @media only screen and (max-width: 16rem) {
        .carousel {
          --_diameter: calc(var(--carousel-diameter) * 0.25);
          --_item-width: calc(var(--carousel-item-width) * 0.25);
          --_item-height: calc(var(--carousel-item-height) * 0.25);
        }
      }

      .carousel .carousel-control-button {
        --_width: var(--carousel-control-button-width);
        --_height: var(--carousel-control-button-height);
        z-index: 1;
        width: var(--_width);
        height: var(--_height);
        background-color: rgb(var(--carousel-control-color-rgb));
        opacity: 0.2;
        transition: opacity var(--carousel-transition-duration)
          var(--carousel-transition-ease);
        position: absolute;
      }
      .carousel .carousel-control-button:hover {
        opacity: 0.4;
      }
      .carousel .carousel-control-button:has(input:checked) {
        opacity: 0.8;
      }

      .carousel .carousel-control-button input {
        -webkit-appearance: none;
        appearance: none;
        opacity: 0;
        width: 100%;
        height: 100%;
        cursor: pointer;
      }

      .carousel .carousel-control-button.left {
        clip-path: polygon(0% 50%, 100% 0%, 100% 100%);
        top: calc(var(--_radius) - var(--_height) / 2);
        left: 0;
      }
      .carousel:has(.carousel-control-button.left input:checked) {
        --carousel-direction-animation-play-state: running;
      }

      .carousel .carousel-control-button.right {
        clip-path: polygon(0% 0%, 100% 50%, 0% 100%);
        top: calc(var(--_radius) - var(--_height) / 2);
        right: 0;
      }
      .carousel:has(.carousel-control-button.right input:checked) {
        --carousel-direction-animation-play-state: paused;
      }

      .carousel .carousel-rotation-direction {
        --_direction-animation-play-state: var(
          --carousel-direction-animation-play-state
        );
        --_z: calc(var(--_radius) * -1);
        transform: translateZ(var(--_z));
        transform-style: preserve-3d;
        animation: carousel-rotation-reverse
          calc(var(--carousel-animation-duration) / 2) reverse linear infinite
          var(--_direction-animation-play-state);
        transition: all var(--carousel-transition-duration)
          var(--carousel-transition-ease);
      }

      @keyframes carousel-rotation-reverse {
        from {
          transform: translateZ(var(--_z)) rotateY(0deg);
        }
        to {
          transform: translateZ(var(--_z)) rotateY(360deg);
        }
      }

      @keyframes carousel-rotation-normal {
        from {
          transform: rotateY(0deg);
        }
        to {
          transform: rotateY(360deg);
        }
      }

      .carousel .carousel-item-wrapper {
        transform-style: inherit;
        width: inherit;
        height: inherit;
        list-style-type: none;
        position: relative;
        animation: carousel-rotation-normal var(--carousel-animation-duration)
          normal linear infinite var(--carousel-animation-play-state);
        transition: all var(--carousel-transition-duration)
          var(--carousel-transition-ease);
      }

      .carousel .carousel-rotation-direction:has(.carousel-item:hover) {
        --carousel-animation-play-state: paused;
        --_direction-animation-play-state: paused;
      }

      .carousel .carousel-item {
        --_width: var(--_item-width);
        --_height: var(--_item-height);
        --_rotation: calc(360 / var(--_num-elements) * var(--_index) * 1deg);
        left: calc(var(--_radius) - var(--_item-width) / 2);
        top: calc(var(--_radius) - var(--_item-height) / 2);
        transform: rotateY(var(--_rotation)) translateZ(var(--_radius));
        transform-style: inherit;
        width: var(--_width);
        height: var(--_height);
        transition: all var(--carousel-transition-duration)
          var(--carousel-transition-ease);
        box-shadow: 0 0 var(--carousel-item-glow-size) transparent;
        position: absolute;
      }

      .carousel .carousel-item:hover {
        box-shadow: 0 0 var(--carousel-item-glow-size)
          rgb(var(--carousel-item-glow-color-rgb));
        transform: rotateY(var(--_rotation))
          translateZ(calc(var(--_radius) * var(--carousel-item-hover-effect)));
      }

      .carousel .carousel-item a {
        display: block;
        width: inherit;
        height: inherit;
        text-indent: -9999px;
        background-color: rgba(var(--carousel-item-empty-color-rgb), 0.5);
        background-image: var(--_image-url);
        background-repeat: no-repeat;
        background-position: center;
        background-size: cover;
        transition: filter var(--carousel-transition-duration)
          var(--carousel-transition-ease);
        filter: grayscale(100%);
      }

      .carousel .carousel-item:hover a {
        filter: grayscale(0%);
      }

      .carousel .carousel-item::before {
        content: "";
        width: inherit;
        height: inherit;
        background-color: rgba(var(--carousel-item-empty-color-rgb), 0.5);
        background-image: linear-gradient(
            to top,
            rgba(var(--carousel-bg-color-rgb), 0.25) 0%,
            rgba(var(--carousel-bg-color-rgb), 1) 75%
          ),
          var(--_image-url);
        background-repeat: no-repeat;
        background-position: center;
        background-size: cover;
        pointer-events: none;
        filter: blur(var(--carousel-item-reflection-blur)) grayscale(100%);
        transition: filter var(--carousel-transition-duration)
          var(--carousel-transition-ease);
        transform-style: inherit;
        transform-origin: center bottom;
        transform: rotateX(90deg) rotateZ(180deg) rotateY(180deg);
        position: absolute;
      }

      .carousel .carousel-item:hover::before {
        filter: blur(var(--carousel-item-reflection-blur)) grayscale(0%);
      }

      .carousel .carousel-ground {
        --_width: var(--_diameter);
        --_height: var(--_diameter);
        --_rotation: 90deg;
        left: calc(var(--_radius) - var(--_width) / 2);
        top: calc(var(--_radius) - var(--_height) / 2);
        transform: rotateX(var(--_rotation))
          translateZ(calc(var(--_item-height) / -2));
        width: var(--_width);
        height: var(--_height);
        border-radius: 50%;
        background: radial-gradient(
          rgba(var(--carousel-shadow-color-rgb), 0.75) 15%,
          rgba(var(--carousel-bg-color-rgb), 0) 60%
        );
        opacity: 0.5;
        transition: opacity var(--carousel-transition-duration)
          var(--carousel-transition-ease);
        position: absolute;
      }

      .carousel
        .carousel-item-wrapper:has(.carousel-item:hover)
        .carousel-ground {
        opacity: 0.75;
      }
    </style>
  </head>
  <body>
    <div class="carousel">
      <div class="carousel-control-button left">
        <input type="radio" name="carousel-control-input" />
      </div>
      <div class="carousel-control-button right">
        <input type="radio" name="carousel-control-input" checked />
      </div>

      <div class="carousel-rotation-direction">
        <ul class="carousel-item-wrapper" style="--_num-elements: 11">
          <li
            class="carousel-item"
            style="--_index: 1; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 1</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 2; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 2</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 3; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 3</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 4; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 4</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 5; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 5</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 6; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 6</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 7; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 7</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 8; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 8</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 9; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 9</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 10; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 10</a>
          </li>
          <li
            class="carousel-item"
            style="--_index: 11; --_image-url: url('../images/blue.jpg')"
          >
            <a href="../images/blue.jpg" target="_blank"> 11</a>
          </li>

          <li class="carousel-ground"></li>
        </ul>
      </div>
    </div>
  </body>
</html>
